2020 HBR Development Phase I Drilling Campaign
Operation Geology Preparation
Hassi Bir Rekaiz, Berkine basin
Algeria
Subsurface Team
Agenda
• HBR Overview
• Development Phase I: Subsurface Well Location
• General Subsurface Information
• Expected Pressure and Temperature Profile
• Casing Landing
• 13-3/8” CSG
• 9-5/8” CSG
• Well TD Criteria
• Wireline Logging Program
• Conventional Coring
• Line of Communication
HBR Overview
Development Phase I
14 New Wells
3 Recompletion Wells
Drill in BOG-REZ prospect
General Subsurface Information
BOG-REZ prospect
Ground Level 120-130 m
Estimated TD
3,900-4,000
(mTVD-MSL)
Max. over pressure 2.10 SG EMW (12-1/4”OH)
Formation Pressure
Reservoir Pressure 1.50 SG EMW (8-1/2”OH)
Temperature Gradient
~2.30
(°C/100m)
TAGI: 0.3-0.6
CO2 Content (%)
ORDO: 0.9-1.1
Triassic clastic reservoir (TAGI)
Reservoir Target
Ordovician clastic reservoir (ORDO)
Development Phase I: Subsurface Well Location
Proposed well
Planned well
Discovery well
Dry well
POD version
C.I.= 10 m
Depth mTVDss
Top TAGI Depth Structural Map
Pressure and Temperature Profile
• HBR Overview
• Development Phase I: Subsurface Well Location
• General Subsurface Information
• Expected Pressure and Temperature Profile
• Casing Landing
• 13-3/8” CSG
• 9-5/8” CSG
• Well TD Criteria
• Wireline Logging Program
• Conventional Coring
• Line of Communication
13-3/8” Casing Point
Expected Casing Point is 25 mVD below Top Lias Anhydrite
Shale package near predicted top Lias
Anhydrite will be defined as the top.
Top Marker Depth will be verified by well
correlation
9-5/8” Casing Point
N S
Thickness in REZ-BOG is ranging between 13 ( BOG-2) 22 m (BOG-1)
Expected 9-5/8” Casing Point for BOG-REZ prospect
BOG-1 BOG-XX REZ-1bis BOG-2
Tr. Salt S4
(HZ-60)
206 m 196 m 207 m
Tr. Arg.
11 m 15 m 13 m ~13m above TAGS
TAGS
20m above Tri. Carb
15 m 18 m ~16m above Tri. Carb
15 m
Tr. Carb
(HZ-66)
• HBR Overview
• Development Phase I: Subsurface Well Location
• General Subsurface Information
• Expected Pressure and Temperature Profile
• Casing Landing
• 13-3/8” CSG
• 9-5/8” CSG
• Well TD Criteria
• Wireline Logging Program
• Conventional Coring
• Line of Communication
Well TD Criteria
S N
Top ORDO
DST#1 DST#1
oil, 10 pu
oil, 7 pu
32 m
36 m oil, 7 pu 34 m
TS Shale water, 7 pu
Water Zone Water Zone
Expected Well TD window
There are 2 factors for TD decision; Including logging pocket
Reservoir Quality
Last HC depth
• HBR Overview
• Development Phase I: Subsurface Well Location
• General Subsurface Information
• Expected Pressure and Temperature Profile
• Casing Landing
• 13-3/8” CSG
• 9-5/8” CSG
• Well TD Criteria
• Wireline Logging Program
• Conventional Coring
• Line of Communication
Wireline Logging Program Summary
Recompletion • 8-1/2”: cement bond log for 7” Liner
BOG-1, REZ-1bis, and BOG-2
• 16”: GR/cement bond log to surface – 6 arm caliper
Conventional • 12-1/4”: GR - density-sonic – 6 arm caliper-cement bond log (13-3/8”csg)
BOG-3, BOG-8, BOG-11, and BOG-15 • 8-1/2”: GR-density-sonic-neutron-resistivity-6 arm caliper-directional survey –
pressure test – check shot - cement bond log (9-5/8” csg and 7” Liner)
• 16”: GR/cement bond log to surface – 6 arm caliper
• 12-1/4”: GR- density - 6 arm caliper-mineralogy detection-dipole sonic – cement bond
Rock Mechanic log (13-3/8”csg)
BOG-5 and BOG-10 • 8-1/2”: GR-density-sonic-neutron-resistivity-6 arm caliper-directional survey-
mineralogy detection-dipole sonic - pressure test - check shot - cement bond log (9-
5/8” csg and 7” Liner)
Step-out well • 16”: GR/cement bond log to surface-density-sonic-6 arm caliper
• 12-1/4”: GR-density-sonic-6 arm caliper-cement bond log (13-3/8”csg)
BOG-12 and BOG-14 • 8-1/2”: GR-density-sonic-neutron-resistivity-6 arm caliper-directional survey –
(Conventional Core) pressure test -borehole imaging – VSP - cement bond log (9-5/8” csg and 7” Liner)
• 16”: GR/cement bond log to surface - density-sonic-6 arm caliper
Salt Detection • 12-1/4”: GR-density-sonic-6 arm caliper-cement bond log (13-3/8”csg)
BOG-13 • 8-1/2”: GR-density-sonic-neutron-resistivity-6arm caliper-directional survey- pressure
test – VSP - cement bond log (9-5/8” csg and 7” Liner)
1st Batch: BOG-14
OH CH Wireline Logging Program
30”
N/A
mTVDSS
18-5/8”
26”
N/A
400mTVDSS
Cenomanian
salt
Run 1/1/1 *GR – sonic - 6arm caliper
13-3/8”
Run 1/1/2 density
16”
Run 1/1/3 Pressure test (MDT sampling Albian water) Well Location
*GR to surface
Density - Sonic x-plot for Cenomanian salt detection
2400mTVDSS
Run 2/1/1 GR - sonic - 6arm caliper - Cement Bond Log 13-3/8”csg (switch mode)
12-1/4”
9-5/8”
Run 2/1/2 density
Density-Sonic for synthetic seismogram
3600mTVDSS
Run 3/1/1 GR – sonic – resistivity - 6arm caliper -Cement Bond Log 9-5/8” csg (switch
mode)
7” Liner
Run 3/1/2 density – neutron - directional survey
8-1/2”
TAGI Run 3/1/3 borehole imaging
Run 3/1/4 pressure test (MDT Dual Packer*)
Run 3/1/5 VSP
ORDO
*optional subject to well result
3900mTVDSS
1st Batch: BOG-12
OH CH Wireline Logging Program
30”
N/A
mTVDSS
18-5/8”
26”
N/A
400mTVDSS
Cenomanian
salt
Run 1/1/1 *GR – sonic - 6arm caliper
13-3/8”
Run 1/1/2 density
16”
Run 1/1/3 Pressure test (MDT sampling Albian water) Well Location
*GR to surface
Density - Sonic x-plot for Cenomanian salt detection
2400mTVDSS
Run 2/1/1 GR - sonic - 6arm caliper - Cement Bond Log 13-3/8”csg (switch mode)
12-1/4”
9-5/8”
Run 2/1/2 density
Density-Sonic for synthetic seismogram
3600mTVDSS
Run 3/1/1 GR – sonic – resistivity - 6arm caliper -Cement Bond Log 9-5/8” csg (switch
mode)
7” Liner
Run 3/1/2 density – neutron - directional survey
8-1/2”
TAGI Run 3/1/3 borehole imaging
Run 3/1/4 pressure test (MDT Dual Packer*)
Run 3/1/5 VSP
ORDO
*optional subject to well result
3900mTVDSS
• HBR Overview
• Development Phase I: Subsurface Well Location
• General Subsurface Information
• Expected Pressure and Temperature Profile
• Casing Landing
• 13-3/8” CSG
• 9-5/8” CSG
• Well TD Criteria
• Wireline Logging Program
• Conventional Coring
• Line of Communication
Conventional Coring
#1 TAGI: 3,830-3,875 mTMD (45 mVD)
#2 ORDO: 3,975-4,015 mTMD (40 mVD)
#1 Cover TAGI and top part of Silurian Shale (5m)
#2 Cover Ouargla sandstone
Coring and preparation before transport:
4 conventional coring runs with 27m per run
1 meter
Cut core and aluminum barrel into 1 m
Seal end cut of aluminum barrel with wax
Onsite GR (optional)
• HBR Overview
• Development Phase I: Subsurface Well Location
• General Subsurface Information
• Expected Pressure and Temperature Profile
• Casing Landing
• 13-3/8” CSG
• 9-5/8” CSG
• Well TD Criteria
• Wireline Logging Program
• Conventional Coring
• Line of Communication
HBR Line of Communication
Update Time Report types Reporting Remarks
schemes
E-mail and OPG sends updated email
7 AM Routine reports
Telephone to subsurface team
Update operations (in e-mail
text body),
OPG sends updated email
4 PM deviation data, mudlog E-mail
to subsurface team
& LWD realtime data (.PDF
and Ascii) --- if any
Daily including weekend and
8 PM Update operations Telephone
holiday
